While surveying a cave, a spelunker follows a passage 190 m straight west, then 210 m in a direction 45.0 degrees east of south, and then 270 m at 30.0degrees east of north. After a fourth unmeasured displacement, she finds herself back where she started. Use vector components to find the magnitude and direction of the fourth displacement." I've tried this a few times and keep getting it wrong.

I realize the resulting Rx and Ry should both be negative, but mine are not. Any help? Thanks!

Question

While surveying a cave, a spelunker follows a passage 190 m straight west, then 210 m in a direction 45.0 degrees east of south, and then 270 m at 30.0degrees east of north. After a fourth unmeasured displacement, she finds herself back where she started. Use vector components to find the magnitude and direction of the fourth displacement." I've tried this a few times and keep getting it wrong.

I realize the resulting Rx and Ry should both be negative, but mine are not. Any help? Thanks!